Page 459 - Manual Oficina Polaris RS1 2018 e 2019

ELECTRICAL

TESTING PARASITIC DRAW TESTING VOLTAGE DROP
Parasitic draw is when there is excessive current flow
with the key off. NOTE
While the most common causes of draws are improperly If you disconnect the connector at the load, and
installed accessories (tapping into un-switched B + measure voltage with one lead on the power supply
instead of switched) there can be electronic component wire, and one to ground, you will be measuring
failures that can cause this as well. available voltage. This is a static test and not dynamic
voltage drop testing. Refer to page Static and Dynamic
TESTING PROCEDURE Testing, page 11.6
1. Remove the negative cable from the battery.
2. Connect a jumper from the negative battery cable The measurement of voltage is the DIFFERENCE in
terminal to the negative battery post. electrical pressure between the two points your DMM
3. Ensure your meter leads and selector dial are set to leads are touching.
measure amperage. Most circuits will have one load. The load is the
4. Connect your red lead to the battery negative cable component in the circuit that uses the current flow to do
terminal. work, such as move a solenoid or light a bulb.
5. Connect your black lead to the battery negative post.
6. Voltage coming into the load should be near battery
voltage with current flowing. There will be some loss from
CAUTION
moving through electrical contacts in connectors and
Ensure all electrical components are switched off, or relays, but it will be minimal.
damage to your jumper and/or meter will occur.
NOTE

Momentarily key the ignition switch on, then off. You will need to backprobe to perform this test. For
7. Wait 30 minutes before checking the value. Vehicles information about doing this safely, refer to Connector
will vary, but electronic components will take time to Probing Guidelines, page 11.7
fully go to sleep after switched power is removed.
8. Maximum allowable is 10 milliamps. If your meter is
ranged to the 10 Amp scale, this will appear as 0.010 Voltage should be near fully depleted by the load. This
Amps. means that when measuring on the ground side of the
9. If over 10 milliamps, go to the fuse block and start circuit, immediately after the load, back to battery
systematically removing one fuse at a time until the negative, you should have near zero pressure difference
value drops, indicating the circuit that requires (voltage).
attention. If you do have a difference in pressure, this means there
is something adding resistance to the circuit such as
corrosion.
For a video demonstration, scan the QR code below, or
right click it and select “open in new tab”.

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9928689 - 2018 RZR RS1 Service Manual 11.11
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